Human
Humans are the most advanced species on the planet and they are the only species capable of advanced abstract thinking/reasoning, language, problem solving, and introspection. The orgsn systems of humans reflects this advanced evolution with very delicate complex systems. Humans respiratory system is a multi-step and complex process but it is all achieved without conscious thought, evolution is amazing.
Humans are a very advanced species and their systems reflect this. Humans use their diaphragm (strong muscle in abdomen area) to bring in and push out air by contracting and relaxing which forces the lungs to inflate and deflate. The air being brought in first travels through the nose where air is purified primarily by hairs and hairlike cilia that trap dust particles but the air is also conditioned by being damped and moistened by mucus. The air then travels through the pharynx(throat) where the air is further purified in similar processes. After traveling through the throat the air travels through the trachea and down into the lungs. Inside of the lungs, there are little sacs called alvieoli where oxygen is removed from the air and given to the red blood cells passing through. The remaining particles plus the carbon dioxide deposited by the red blood cells is then exhaled back into the open air. This exchange of gases is called respiration.
Humans are a very advanced species and their systems reflect this. Humans use their diaphragm (strong muscle in abdomen area) to bring in and push out air by contracting and relaxing which forces the lungs to inflate and deflate. The air being brought in first travels through the nose where air is purified primarily by hairs and hairlike cilia that trap dust particles but the air is also conditioned by being damped and moistened by mucus. The air then travels through the pharynx(throat) where the air is further purified in similar processes. After traveling through the throat the air travels through the trachea and down into the lungs. Inside of the lungs, there are little sacs called alvieoli where oxygen is removed from the air and given to the red blood cells passing through. The remaining particles plus the carbon dioxide deposited by the red blood cells is then exhaled back into the open air. This exchange of gases is called respiration.